Heat Transfer Basics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Heat Transfer Basics, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Heat Transfer Basics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Heat Transfer Basics mcq questions that explore various aspects of Heat Transfer Basics problems. Each MCQ is crafted to challenge your understanding of Heat Transfer Basics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Heat Transfer Basics MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Heat Transfer Basics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Heat Transfer Basics knowledge to the test? Let's get started with our carefully curated MCQs!

Heat Transfer Basics MCQs | Page 3 of 53

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Q21.
Prandtl number is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q22.
For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q23.
A graph between __________ is called Wilson plot.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q24.
What is the geometric mean of two heat transfer areas A1 and A2 ?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q25.
Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately

a.

32

b.

37

c.

45

d.

50

Discuss
Answer: (a).32
Q26.
In a heat exchanger, floating head is provided to

a.

facilitate cleaning of the exchanger.

b.

increase the heat transfer area.

c.

relieve stresses caused by thermal expansion.

d.

increase log mean temperature gradient.

Discuss
Answer: (c).relieve stresses caused by thermal expansion.
Q27.
Leidenfrost point is a term concerned with the

a.

condensation of the saturated vapor on a cold surface.

b.

concentration of a corrosive solution by evaporation.

c.

heat transfer between two highly viscous liquids.

d.

boiling of a liquid on a hot surface.

Discuss
Answer: (d).boiling of a liquid on a hot surface.
Q28.
A process stream of dilute aqueous solution flowing at the rate of10 Kg.s⁻¹ is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s⁻¹. A 1 - 1 shell and tube heat exchanger is available. The best arrangement is

a.

counter flow with process stream on shell side.

b.

counter flow with process stream on tube side.

c.

parallel flow with process stream on shell side.

d.

parallel flow with process stream on tube side.

Discuss
Answer: (a).counter flow with process stream on shell side.
Q29.
Heat produced when a steady state current, I passes through an electrical conductor having resistance, 'R' is

a.

IR

b.

I²R

c.

IR²

d.

I²R²

Discuss
Answer: (b).I²R
Q30.
Kirchoff s law applies to __________ radiation.

a.

total

b.

monochromatic

c.

both (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) & (b)
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